Directed by Nitesh Tiwari, Dangal is scheduled to be released on December 23.

Bollywood actor Aamir Khan attends a news conference after an event to launch him as a United Nations Children's Fund (UNICEF) Regional Goodwill Ambassador for south Asia, in Kathmandu October 9, 2014. [Representational image]Reuters

Aamir Khan has put his heart and soul into Dangal and the just-released trailer is proof of that. Although, some scenes appear as if they are straight out of Salman Khan's Sultan, Dangal carries a charm of its own.

Meanwhile, social media users have pointed out how Dangal may not work because it comes a few months after Sultan, which too was based on wrestling. However, trade experts have predicted a bright future for Dangal.

Komal Nahta told BollywoodLife that it will break records of all of Aamir's previous films. "I loved the trailer, it's just incredible. I have been saying this since the beginning that this film will be the biggest hit of this year. Aamir Khan is known to set the trend, his Ghajni was the first film to enter 100 crore club, 200 club with 3 Idiots, 300 crore club with PK and the 400 club with Dangal. I think it will happen," he added.

Scheduled to arrive in theatres on December 23, Dangal is a special film not because it comes two years after the commercially successful and awarded film PK, but because Aamir has worked hard on getting the Hariyanvi accent and physical transformation right. He has piled on as many as 22 kilograms to play the weathered Mahavir Singh Phogat on screen.

"While working on your weight, diet gets 50% weightage while exercise comprises 30% and 20% weightage is given to rest. Only that balance will give you desired results and yet keep you health," Aamir told the Hindustan Times.